If you are hot blooded at all, BRING A FAN! 20"
box fan at Home Depot is about $12.

Bring an extension cord.

Bring some bungee cords to hold the fan in the
window or on the end of the bunk bed.

Bring water in bottles, whatever soft drinks,
juice, sports drinks you might like, and a cooler.

Snacks are a good idea.

Bring some folding chairs for you and your son
to sit in. He will not use it, but a few extras is a good idea if
other tribes dads come over for fellowship or to steal our refreshments
and cheroots in the evening.